YONGNUO YN50 50mm F1.8 Lens Large Aperture Auto Focus Lens for Nikon DSLR CamerasF1.8 large aperture,virtual background, which makes photography with more fun. Support auto focus and manual focus mode; Adopts gold plating for the metal contacts, effectively improve the signal conductivity and corrosion resistance; Supports M/AV/TV/P and other camera shooting modes, and can be displayed the aperture data in the EXIF Information; Supports FX and DX format cameras; Multi-coated lenses,effectively improve the transmittanceSpecification:View-angle Coverate:Diagonal: 46 DegreeVertical: 27 DegreeHorizontal: 40 DegreeLens Structure: 5 sets, 6 piecesMinimum Aperture: F/22Minimum Focusing Distance: 0.45mLens Filter Thread: 58mmMaximum Magnification and Sight Range: 0.15X / 160x240mm(when the distance is 0.45m)Filter Diameter / Auantity Available: 52mm / 1Maximum Diameter and Length: 73*55mm